Re:Ask HN: Web designers: do you consider Adobe CS5 necessary?
by whiterabbit on Friday August 19, 2011 @10:09PM
(#2905532)
It's not possible to read a CS5 PSD with CS3. If you don't follow Adobe's upgrade path you're out of business (which means a great opportunity for GIMP).
http://en.wikipedia.org/wiki/Vendor_lock-in